It's been known since the end of last season that longtime Phillies broadcaster Larry Andersen, now 64 years old, would scale back his duties in 2018 in order to devote more time to his personal life.

The assumption has been that Andersen will stick around for the 81 games at Citizens Bank Park, remaining in the booth with Scott Franzke. We now have confirmation of that plan and an announcement that a platoon will be put into effect for the road schedule, according to the team and MLB.com Phillies beat writer Todd Zolecki.

#Phillies have added former players Kevin Frandsen, Kevin Jordan and Kevin Stocker to the radio broadcast team. 📻

The trio will rotate working road games alongside play-by-play announcer Scott Franzke for the 2018 season. pic.twitter.com/1dRZlvkVob

Frandsen is a former infielder who played with the Phillies in 2012 and 2013. Jordan played his entire career for the Phillies in the infield from 1995 to 2001. Stocker, a shortstop, played for the Phillies from 1993 to 1997.

The Phils' first full-squad workout for spring training will be held Feb. 19 in Clearwater, Fla.